<template>
  <el-breadcrumb
    v-if="route.path !== '/index'"
    class="app-breadcrumb"
    separator="/">
    <transition-group name="breadcrumb">
      <el-breadcrumb-item
        v-for="(item, index) in levelList"
        :key="item.path">
        <span
          :class="{ firstItem: index === 0, noFirstItem: index !== 0 }"
          @click="index !== 0 && router.push(item.path)"
          v-if="item.redirect === 'noRedirect' || index == levelList.length - 1"
          class="no-redirect">
          {{ item.meta.title }}
        </span>
        <!-- <a
          v-else
          @click.prevent="handleLink(item)">
          {{ item.meta.title }}
        </a> -->
      </el-breadcrumb-item>
    </transition-group>
  </el-breadcrumb>
</template>

<script setup>
const route = useRoute();
const router = useRouter();
const levelList = ref([]);

function getBreadcrumb() {
  // only show routes with meta.title
  let matched = route.matched.filter((item) => item.meta && item.meta.title);
  // const first = matched[0];
  // 判断是否为首页
  // if (!isDashboard(first)) {
  //   matched = [{ path: "/index", meta: { title: "首页" } }].concat(matched);
  // }
  console.log(matched);
  levelList.value = matched.filter(
    (item) => item.meta && item.meta.title && item.meta.breadcrumb !== false
  );
}
// function isDashboard(route) {
//   const name = route && route.name;
//   if (!name) {
//     return false;
//   }
//   return name.trim() === "Index";
// }
// function handleLink(item) {
//   const { redirect, path } = item;
//   if (redirect) {
//     router.push(redirect);
//     return;
//   }
//   router.push(path);
// }

watchEffect(() => {
  // if you go to the redirect page, do not update the breadcrumbs
  if (route.path.startsWith("/redirect/")) {
    return;
  }
  getBreadcrumb();
});
getBreadcrumb();
</script>

<style lang="scss" scoped>
.app-breadcrumb {
  padding-left: 15px;
}
.app-breadcrumb.el-breadcrumb {
  display: inline-block;
  font-size: 14px;
  line-height: 50px;
  margin-left: 8px;

  .no-redirect {
    color: #97a8be;
    cursor: text;
  }
}
.firstItem {
  color: #fff !important;
  font-size: 18px;
}
.noFirstItem {
  color: #fff !important;
  font-size: 12px;
}

:deep(.el-breadcrumb__separator) {
  color: #fff !important;
  font-size: 12px;
}
</style>
